The expression in the image is:

$3\sqrt{5} \times 3\sqrt{5} \times 2\sqrt{6}$

Let's simplify this step-by-step:

1. Group the constants and the square roots separately: $(3 \times 3 \times 2) \times (\sqrt{5} \times \sqrt{5} \times \sqrt{6})$

2. Multiply the constants: $3 \times 3 \times 2 = 18$

3. Multiply the square roots: $\sqrt{5} \times \sqrt{5} = 5$ So now you have: $5 \times \sqrt{6} = 5\sqrt{6}$

4. Multiply everything together: $18 \times 5\sqrt{6} = 90\sqrt{6}$

So, the simplified result is:

$90\sqrt{6}$

Would you like further details or explanations on any step?

Here are five related questions for practice:

1. What is $(2\sqrt{3}) \times (4\sqrt{12})$?
2. Simplify the expression $\sqrt{8} \times \sqrt{2}$.
3. What is the product of $5\sqrt{7} \times 3\sqrt{7}$?
4. How do you multiply two expressions involving square roots, like $\sqrt{2} \times \sqrt{18}$?
5. What is the result of $6\sqrt{10} \times 2\sqrt{5}$?

Tip: When multiplying square roots, remember that $\sqrt{a} \times \sqrt{b} = \sqrt{a \times b}$.